Are there any reports of data feed issues? I have a server that has
downstream:atm.geo.nsf.gov
downstream:metlab1.met.fsu.edu

as the downstream servers. They run fine for a couple of hours, but
then the data just stops coming in? Is there a status page for the
feeds that I can check myself and locate some addtional feeds to get
data pulled from?

I also see you have an older version of the LDM. Try upgrading to 6.10.1,
and see if that fixes some of the issue.